How can I send a number across a Deno.TcpConn as stream of bytes?

async function sendMessage(message) {
  const header = new Uint32Array([message.length]);
  await Deno.stdout.write(new Uint8Array(header.buffer));
  await Deno.stdout.write(message);
}

async function sendMessage(message) {
  const header = new Uint32Array([message.length]);
  await Deno.stdout.write(new Uint8Array(header.buffer));
  await Deno.stdout.write(message);
}

44100 * (16 / 8) * 2 * 60

44100 * (16 / 8) * 2 * 60

noct@ubuntu:~/host_home/projects/godot_engine_4/example/game_mods$ deno run ./main.ts 
A new release of Deno is available: 1.36.0 → 1.36.1 Run `deno upgrade` to install it.
┌ ⚠️  Deno requests read access to "/run/host/xhome/noct/projects/godot_engine_4/example/node_modules".
├ Run again with --allow-read to bypass this prompt.
└ Allow? [y/n/A] (y = yes, allow; n = no, deny; A = allow all read permissions) >

noct@ubuntu:~/host_home/projects/godot_engine_4/example/game_mods$ deno run ./main.ts 
A new release of Deno is available: 1.36.0 → 1.36.1 Run `deno upgrade` to install it.
┌ ⚠️  Deno requests read access to "/run/host/xhome/noct/projects/godot_engine_4/example/node_modules".
├ Run again with --allow-read to bypass this prompt.
└ Allow? [y/n/A] (y = yes, allow; n = no, deny; A = allow all read permissions) >

await this.encoder.flush();
    const json = JSON.stringify(this.metadata);
    console.log('stop', this.metadata);
    const length = Uint32Array.of(json.length);
    // JSON configuration length
    this.blob = new Blob([length, json, this.blob], {
      type: 'application/octet-stream',
    });

await this.encoder.flush();
    const json = JSON.stringify(this.metadata);
    console.log('stop', this.metadata);
    const length = Uint32Array.of(json.length);
    // JSON configuration length
    this.blob = new Blob([length, json, this.blob], {
      type: 'application/octet-stream',
    });

this.buffer = source;
    this.type = type;
    const view = new DataView(this.buffer);
    const length = view.getUint32(0, true);
    const json = new TextDecoder().decode(
      new Uint8Array(this.buffer).subarray(4, length + 4)
    );
    this.config = JSON.parse(json);
    console.log(this.config);
    this.data = new Uint8Array(this.buffer).subarray(json.length + 4);

this.buffer = source;
    this.type = type;
    const view = new DataView(this.buffer);
    const length = view.getUint32(0, true);
    const json = new TextDecoder().decode(
      new Uint8Array(this.buffer).subarray(4, length + 4)
    );
    this.config = JSON.parse(json);
    console.log(this.config);
    this.data = new Uint8Array(this.buffer).subarray(json.length + 4);